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FILE - In this Aug. 26, 2009, file photo, crystal methamphetamine dries on a table at a seized illegal laboratory in Ensenada, northern Mexico. Mexico's most powerful drug cartel appears to be expanding methamphetamine production on a massive scale, filling a gap left by the breakdown of a rival gang that was once the top trafficker of the synthetic drug. The globe-spanning Sinaloa cartel is suspected of dealing record tons of drugs and precursor chemicals processed in industrial-sized operations. The apparent increase in the Sinaloa group's involvement comes as the Mexican government says it has dismantled the La Familia gang with key arrests and killings of its leadership, and as Mexico is once again the primary source of meth to the United States, according to U.S. drug intelligence reports. (AP Photo/Guillermo Arias, File)

FILE - In this Aug. 26, 2009, file photo, crystal methamphetamine dries on a table at a seized illegal laboratory in Ensenada, northern Mexico. Mexico's most powerful drug cartel appears to be expanding methamphetamine production on a massive scale, filling a gap left by the breakdown of a rival gang that was once the top trafficker of the synthetic drug. The globe-spanning Sinaloa cartel is suspected of dealing record tons of drugs and precursor chemicals processed in industrial-sized operations. The apparent increase in the Sinaloa group's involvement comes as the Mexican government says it has dismantled the La Familia gang with key arrests and killings of its leadership, and as Mexico is once again the primary source of meth to the United States, according to U.S. drug intelligence reports. (AP Photo/Guillermo Arias, File)